311332223011 has 4 divisors (see below), whose sum is σ = 317206415952. Its totient is φ = 305458030072.

The previous prime is 311332222919. The next prime is 311332223017. The reversal of 311332223011 is 110322233113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110322233113 = 23 ⋅4796618831.

It is a cyclic number.

It is not a de Polignac number, because 311332223011 - 2²¹ = 311330125859 is a prime.

It is a super-2 number, since 2×311332223011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311332223017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2937096391 + ... + 2937096496.

It is an arithmetic number, because the mean of its divisors is an integer number (79301603988).

Almost surely, 2^311332223011 is an apocalyptic number.

311332223011 is a deficient number, since it is larger than the sum of its proper divisors (5874192941).

311332223011 is an equidigital number, since it uses as much as digits as its factorization.

311332223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874192940.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 311332223011 its reverse (110322233113), we get a palindrome (421654456124).

The spelling of 311332223011 in words is "three hundred eleven billion, three hundred thirty-two million, two hundred twenty-three thousand, eleven".